I called OS before ordering because I wanted to have them mounted inside the sliding door frame. They didn't know much about the options. If you want inside mount - order the width to fit exactly the width of your door. I have 70" opening and that's what I got. It's pretty exact, tight fit. The length is from the top of the mount to the bottom of the vertical blind. I was told to order couple inches shorter to allow for the mount and now they are 2.5" off the floor. So if the frame is 78" tall, get 77" lenght and you will be 1" off the floor. You will need to cut down the valance to fit inside the door frame but its easy to do in chop saw. We screwed the valance under the metal brackets holding the blinds and didn't use the plastic brackets provided. It's nice clean look and the valance covers the hardware and doesn't extend past the door trim.
- How did the color on site compare with the actual product? accurate
- Please tell us about the quality of the product. quality good, came with no instructions
- How accurate was the on site description of the product? little confusing to figure out the right size